Merge branch 'ipa-autosuspend'

Alex Elder says:

====================
net: ipa: enable automatic suspend

At long last, the first patch in this series enables automatic
suspend managed by the power management core.  The remaining two
just rename things to be "power" oriented rather than "clock"
oriented.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>